PDF(Pubmed)
Abstract：
Osteoid osteoma is a benign osteoblastic tumour with a predilection for the lower extremity that rarely affects the forearm. It is commonly seen in adolescents and young adults, and is seldom diagnosed in the paediatric age group. We report a boy in his early childhood who presented with a swelling over the distal forearm, which was incidentally noted by the mother 3 months ago. Plain radiographs showed diffuse sclerosis of the dorsal cortex of the distal radius. CT scan showed a central lucent nidus in the intramedullary region and surrounding sclerosis in the radial metaphysis, confirming the diagnosis of osteoid osteoma. The patient was successfully treated by surgical en bloc resection of the nidus and was asymptomatic at 1-year follow-up. Non-specific symptoms at presentation make it a challenge to diagnose osteoid osteoma in children and it needs to be considered in the differential diagnosis when radiographs show lytic lesions in the bone.
摘要：
骨样骨瘤是一种良性成骨细胞肿瘤，对下肢有好发，很少影响前臂。常见于青少年和年轻人，很少在儿科年龄组被诊断出来。我们报道了一个童年时期的男孩，他的前臂远端肿胀，这是三个月前母亲偶然注意到的。X线平片显示桡骨远端背侧皮质弥漫性硬化。CT扫描显示髓内区域的中央透明眼及桡骨干骨干端周围的硬化，确认骨样骨瘤的诊断。该患者通过手术整体切除病灶成功治疗，并在1年随访时无症状。出现时的非特异性症状使诊断儿童骨样骨瘤成为挑战，当X光片显示骨中有溶解性病变时，在鉴别诊断中需要考虑。
